Ryan Babchishin – http://win2ix.ca
Below are the steps to copy ZFS volume (zvol).
Create a test source volume
zfs create -V 10g pool1/testvol
Snapshot the test volume
zfs snapshot pool1/testvol@snapshot
Copy the volume
zfs send pool1/testvol@snapshot | zfs receive pool1/testvol_copy
Reserve space for the copy of the volume
zfs set refreservation=10G pool1/testvol_copy
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